Home / 191,065.71-286,601.31-72,743.55

Finding the Fourth Proportional to 191,065.71, 286,601.31 and 72,743.55

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Solution

The fourth proportional to 191,065.71, 286,601.31 and 72,743.55 is: 109,116.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,065.71 : 286,601.31 = 72,743.55 : x
  2. Step 2: Convert to fraction form
    191,065.71/286,601.31 = 72,743.55/x
  3. Step 3: Cross multiply
    191,065.71x = 286,601.31 × 72,743.55
  4. Step 4: Simplify right side
    191,065.71x = 20,848,396,724.05
  5. Step 5: Solve for x
    x = 20,848,396,724.05/191,065.71
  6. Step 6: Final answer
    x = 109,116.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.